A contract worker lifts up a piece of oil slick boom while working to clean oil from a beach June 15, 2010 in Grand Isle, Louisiana. The BP spill has been called the largest environmental disaster in American history. U.S. government...Mehr

A contract worker lifts up a piece of oil slick boom while working to clean oil...A contract worker lifts up a piece of oil slick boom while working to clean oil from a beach June 15, 2010 in Grand Isle, Louisiana. The BP spill has been called the largest environmental disaster in American history. U.S. government scientists have estimated that the flow rate of oil gushing out of a ruptured Gulf of Mexico oil well may be as high 40,000 barrels per day. Following his fourth trip to the Gulf on Monday, President Barack Obama will address the nation in an Oval Office speech today on the situation in the Gulf.WenigerMehr

Summer Burkes of New Orleans watches in the oil stricken community of Grand Isle as President Barack Obama discusses the oil spill in the Gulf of Mexico in a an Oval Office speech, the first Oval Office speech of his presidency June...Mehr

Summer Burkes of New Orleans watches in the oil stricken community of Grand Isle as...Summer Burkes of New Orleans watches in the oil stricken community of Grand Isle as President Barack Obama discusses the oil spill in the Gulf of Mexico in a an Oval Office speech, the first Oval Office speech of his presidency June 15, 2010 off of Grand Isle, Louisiana. Obama told the nation that the spill is a wake-up call and the country should change the way energy is produced and used. The BP spill has been called the largest environmental disaster in American history. U.S. government scientists have estimated that the flow rate of oil gushing out of a ruptured Gulf of Mexico oil well may be as high 40,000 barrels per day.WenigerMehr

Plc contractor worker pulls up an oil-soaked absorbent boom in Bay Ronquille off the coast of Grand Isle, Louisiana, U.S., on Tuesday, June 15, 2010. The BP Plc oil spill, which began when the leased Transocean Deepwater Horizon oil...Mehr

Plc contractor worker pulls up an oil-soaked absorbent boom in Bay Ronquille off...Plc contractor worker pulls up an oil-soaked absorbent boom in Bay Ronquille off the coast of Grand Isle, Louisiana, U.S., on Tuesday, June 15, 2010. The BP Plc oil spill, which began when the leased Transocean Deepwater Horizon oil rig exploded on April 20, has closed as much as 37 percent of federal waters in the Gulf of Mexico to fishing, cut offshore drilling in the U.S. by half, and polluted at least 140 miles (225 kilometers) of shoreline from Louisiana to Florida. Photographer: Derick E. Hingle/Bloomberg via Getty ImagesWenigerMehr

BP Plc contractor workers pull up an oil-soaked absorbent boom in Bay Ronquille off the coast of Grand Isle, Louisiana, U.S., on Tuesday, June 15, 2010. The BP Plc oil spill, which began when the leased Transocean Deepwater Horizon oil...Mehr

BP Plc contractor workers pull up an oil-soaked absorbent boom in Bay Ronquille off...BP Plc contractor workers pull up an oil-soaked absorbent boom in Bay Ronquille off the coast of Grand Isle, Louisiana, U.S., on Tuesday, June 15, 2010. The BP Plc oil spill, which began when the leased Transocean Deepwater Horizon oil rig exploded on April 20, has closed as much as 37 percent of federal waters in the Gulf of Mexico to fishing, cut offshore drilling in the U.S. by half, and polluted at least 140 miles (225 kilometers) of shoreline from Louisiana to Florida. Photographer: Derick E. Hingle/Bloomberg via Getty ImagesWenigerMehr

Louisiana Governor Bobby Jindal speaks with workers, mainly fisherman, involved in the clean-up effort of the BP oil spill on a command post boat in Barataria Bay on June 15, 2010 off of Grand Isle, Louisiana. The BP spill has been...Mehr

Louisiana Governor Bobby Jindal speaks with workers, mainly fisherman, involved in...Louisiana Governor Bobby Jindal speaks with workers, mainly fisherman, involved in the clean-up effort of the BP oil spill on a command post boat in Barataria Bay on June 15, 2010 off of Grand Isle, Louisiana. The BP spill has been called the largest environmental disaster in American history. U.S. government scientists have estimated that the flow rate of oil gushing out of a ruptured Gulf of Mexico oil well may be as high 40,000 barrels per day. Following his fourth trip to the Gulf on Monday, President Barack Obama will address the nation in an Oval Office speech today on the situation in the Gulf.WenigerMehr

An employee with the governor's office collects oil for research purposes in Bay Jimmy on June 15, 2010 off of Grand Isle, Louisiana. The BP spill has been called the largest environmental disaster in American history. U.S. government...Mehr

An employee with the governor's office collects oil for research purposes in Bay...An employee with the governor's office collects oil for research purposes in Bay Jimmy on June 15, 2010 off of Grand Isle, Louisiana. The BP spill has been called the largest environmental disaster in American history. U.S. government scientists have estimated that the flow rate of oil gushing out of a ruptured Gulf of Mexico oil well may be as high 40,000 barrels per day. Following his fourth trip to the Gulf on Monday, President Barack Obama will address the nation in an Oval Office speech today on the situation in the Gulf.WenigerMehr

A team of biologists from the US Fish and Wildlife Service catch a brown pelican covered with oil from the BP Deepwater Horizon oil spill, at Sandy Point in the Gulf of Mexico, near Venice, Louisiana, June 15, 2010. Birds are caught...Mehr

A team of biologists from the US Fish and Wildlife Service catch a brown pelican...A team of biologists from the US Fish and Wildlife Service catch a brown pelican covered with oil from the BP Deepwater Horizon oil spill, at Sandy Point in the Gulf of Mexico, near Venice, Louisiana, June 15, 2010. Birds are caught and then cleaned at the Fort Jackson Oiled Wildlife Rehabilitation Center. AFP PHOTO / Saul LOEBWenigerMehr

John Gill, a biologist from the US Fish and Wildlife Service, looks out over the water as he searches for birds covered with oil from the BP Deepwater Horizon oil spill, at Empire Jetty in the Gulf of Mexico, near Venice, Louisiana,...Mehr

John Gill, a biologist from the US Fish and Wildlife Service, looks out over the...John Gill, a biologist from the US Fish and Wildlife Service, looks out over the water as he searches for birds covered with oil from the BP Deepwater Horizon oil spill, at Empire Jetty in the Gulf of Mexico, near Venice, Louisiana, June 15, 2010. Birds are caught and then cleaned at the Fort Jackson Oiled Wildlife Rehabilitation Center. AFP PHOTO / Saul LOEBWenigerMehr

A brown pelican covered with oil from the BP Deepwater Horizon oil spill, swims at Sandy Point in the Gulf of Mexico, near Venice, Louisiana, June 15, 2010, prior to being captured by team of biologists from the US Fish and Wildlife...Mehr

A brown pelican covered with oil from the BP Deepwater Horizon oil spill, swims at...A brown pelican covered with oil from the BP Deepwater Horizon oil spill, swims at Sandy Point in the Gulf of Mexico, near Venice, Louisiana, June 15, 2010, prior to being captured by team of biologists from the US Fish and Wildlife Service. Birds are caught and then cleaned at the Fort Jackson Oiled Wildlife Rehabilitation Center. AFP PHOTO / Saul LOEBWenigerMehr

Contractors working for BP head out to work on the oil spill June 15, 2010 in Grand Isle, Louisiana. The BP spill has been called the largest environmental disaster in American history. U.S. government scientists have estimated that...Mehr

Contractors working for BP head out to work on the oil spill June 15, 2010 in Grand...Contractors working for BP head out to work on the oil spill June 15, 2010 in Grand Isle, Louisiana. The BP spill has been called the largest environmental disaster in American history. U.S. government scientists have estimated that the flow rate of oil gushing out of a ruptured Gulf of Mexico oil well may be as high 40,000 barrels per day. Following his fourth trip to the Gulf on Monday, President Barack Obama will address the nation in an Oval Office speech today on the situation in the Gulf.WenigerMehr